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Suppose d = {“john”:40, “peter”:45}, what happens when we try to retrieve a value using the expression d[“susan”]?
  • a)
    Since “susan” is not a value in the set, Python raises a KeyError exception
  • b)
    It is executed fine and no exception is raised, and it returns None
  • c)
    Since “susan” is not a key in the set, Python raises a KeyError exception
  • d)
    Since “susan” is not a key in the set, Python raises a syntax error
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Suppose d = {“john”:40, “peter”:45}, what happ...
Explanation:

KeyError Exception:
- In Python, when you try to retrieve a value using a key that is not present in a dictionary, it raises a KeyError exception.
- In the given dictionary d = {“john”:40, “peter”:45}, the key 'susan' is not present in the dictionary.
- Therefore, when you try to retrieve a value using the expression d[“susan”], Python raises a KeyError exception.

Correct Answer:
- The correct answer to the question is option 'C', which states that since 'susan' is not a key in the set, Python raises a KeyError exception.
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Suppose d = {“john”:40, “peter”:45}, what happens when we try to retrieve a value using the expression d[“susan”]?a)Since “susan” is not a value in the set, Python raises a KeyError exceptionb)It is executed fine and no exception is raised, and it returns Nonec)Since “susan” is not a key in the set, Python raises a KeyError exceptiond)Since “susan” is not a key in the set, Python raises a syntax errorCorrect answer is option 'C'. Can you explain this answer?
Question Description
Suppose d = {“john”:40, “peter”:45}, what happens when we try to retrieve a value using the expression d[“susan”]?a)Since “susan” is not a value in the set, Python raises a KeyError exceptionb)It is executed fine and no exception is raised, and it returns Nonec)Since “susan” is not a key in the set, Python raises a KeyError exceptiond)Since “susan” is not a key in the set, Python raises a syntax errorCorrect answer is option 'C'. Can you explain this answer? for Humanities/Arts 2025 is part of Humanities/Arts preparation. The Question and answers have been prepared according to the Humanities/Arts exam syllabus. Information about Suppose d = {“john”:40, “peter”:45}, what happens when we try to retrieve a value using the expression d[“susan”]?a)Since “susan” is not a value in the set, Python raises a KeyError exceptionb)It is executed fine and no exception is raised, and it returns Nonec)Since “susan” is not a key in the set, Python raises a KeyError exceptiond)Since “susan” is not a key in the set, Python raises a syntax errorCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Humanities/Arts 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Suppose d = {“john”:40, “peter”:45}, what happens when we try to retrieve a value using the expression d[“susan”]?a)Since “susan” is not a value in the set, Python raises a KeyError exceptionb)It is executed fine and no exception is raised, and it returns Nonec)Since “susan” is not a key in the set, Python raises a KeyError exceptiond)Since “susan” is not a key in the set, Python raises a syntax errorCorrect answer is option 'C'. Can you explain this answer?.
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